Boosts weaker signals for crystal clear reception; Optimized for digital HD reception; Raise, lower and rotate from inside your parked RV; Pinpoint the exact angle for best reception ; FEATURES Long-Range - With an unsurpassed 55 mile range, the Sensar II Amplified Antenna allows you to watch your favorite shows in the lowest signal areas.; Easy to Use -The Sensar easily cranks up and rotates from inside the RV to 48" height for maximum performance.; Built to Last - Powder coated for long lasting durability with over 35 years of experience on RV roofs. Sensar antennas have passed rigorous UV and environmental testing.; Low-Profile - The Sensar III has a low-profile design to help protect against obstructions like tree branches, wires, and more.; Programming: To receive programming, run a channel scann on yourTV aftr settin gup your antenna. To keep your channel line-up-to-date it is a good idea to run a channel scan monthly and anytime a channel is lost.; Antenna Directivity: Multidirectional, receives signals from multiple directions simultaneously; Reception Types: VHF/UHF; Reception descriptions:VHF (Very High Frequency): Provides channels 2-13 in the frequency range 54-216 MHz.; UHF (Ultra High Frequency): Provides channels 14-51 in the frequency range 470-698 MHz.; ; Compatible Networks : HDTV Towers; Complimentary: Telephone and email support; Online: Technical manuals and instructions; Support: Large Dealer Support Network; Warranty: 2-Year Parts, 1-Year Labor Warranty; IN THE BOX Sensar III Antenna Head; Roof Top Lift Assembly with 27" Boom; Power Supply; Interior Control Parts; 20' Coax Cable Cable; Hardware Bag; Printed Documentation;